Re: BeagleBone Black and GPIO issues
Mouse <[email protected]>
| Newsgroups | gmane.os.netbsd.ports.arm |
|---|---|
| Message-ID | <[email protected]> |
> When I enable a pullup the voltage on the pin reads 3.2 V on my > multimeter. When I enable a pulldown the the voltage on the pin > reads 1.6 V which doesn't make me super happy, but it doesn't seem to > be floating. Did you try strapping it to Vcc and GND with some 3-10 K of resistance to see if that affects the voltage? Depending on various factors, 1.6V could very well be what you get for a floating input pin. And IMO if you take an input pin, enable pulldown, disable pullup, and don't drive the pin externally, it should measure pretty darn close to 0V. /~\ The ASCII Mouse \ / Ribbon Campaign X Against HTML [email protected] / \ Email! 7D C8 61 52 5D E7 2D 39 4E F1 31 3E E8 B3 27 4B